Hey macbook peeps here on threads. Lend a hand pls. My macbook air is turned on but is on black screen lang. How do I troubleshoot this? I tried the one mentioned on the apple support webpage but to no avail. Nag try rin ako to contact sana apple support, kaso when i enter the serial number listed on my apple id, di naggo-go through. So di ko mapush through yung apple support na chat or call.